49137445397 has 2 divisors, whose sum is σ = 49137445398. Its totient is φ = 49137445396.

The previous prime is 49137445307. The next prime is 49137445457. The reversal of 49137445397 is 79354473194.

49137445397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37197293956 + 11940151441 = 192866^2 + 109271^2 .

It is a cyclic number.

It is not a de Polignac number, because 49137445397 - 2²⁰ = 49136396821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49137445307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24568722698 + 24568722699.

It is an arithmetic number, because the mean of its divisors is an integer number (24568722699).

Almost surely, 2^49137445397 is an apocalyptic number.

It is an amenable number.

49137445397 is a deficient number, since it is larger than the sum of its proper divisors (1).

49137445397 is an equidigital number, since it uses as much as digits as its factorization.

49137445397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 56.

The spelling of 49137445397 in words is "forty-nine billion, one hundred thirty-seven million, four hundred forty-five thousand, three hundred ninety-seven".